Just taken my K3 clutch apart and found two very thin steel washers behind the retaining circlip that holds the basket on the shaft. Looked it up on CMSNL and found that there are three thicknesses of these washers (Item 15 on the clutch exploded view and part no 90458323010 is the 0.1mm thick option). So they obviously act as shims, but how tight should they be holding the clutch on the shaft? Is there some specified gap between the circlip and the shims? My clutch does move a fraction up and down the shaft and I wonder if this contributes to the famous CB550 clutch rattle.
